Spread Silverlight Documentation > Developer's Guide > Managing the User Interface > Using Input Mapping |
You can change the keyboard keys that are used to trigger built-in actions to other keys. Actions include navigation, selection, cut, copy, paste, clear, undo, and redo.
There is a complete list of actions in the SpreadActions class.
The following example maps keys to actions.
CS |
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public MainWindow() { InitializeComponent(); Dictionary<GrapeCity.Windows.SpreadSheet.UI.KeyStroke, GrapeCity.Windows.SpreadSheet.UI.SpreadAction> keyMap = gcSpreadSheet1.View.KeyMap; keyMap.Add(new GrapeCity.Windows.SpreadSheet.UI.KeyStroke(Key.OemPlus, ModifierKeys.Alt), new GrapeCity.Windows.SpreadSheet.UI.SpreadAction(OnInsertSumFormula)); keyMap.Add(new GrapeCity.Windows.SpreadSheet.UI.KeyStroke(Key.B, ModifierKeys.Alt), new GrapeCity.Windows.SpreadSheet.UI.SpreadAction(GrapeCity.Windows.SpreadSheet.UI.SpreadActions.NavigationLeft)); keyMap.Add(new GrapeCity.Windows.SpreadSheet.UI.KeyStroke(Key.A, ModifierKeys.Alt), new GrapeCity.Windows.SpreadSheet.UI.SpreadAction(GrapeCity.Windows.SpreadSheet.UI.SpreadActions.Clear)); } private void OnInsertSumFormula(GrapeCity.Windows.SpreadSheet.UI.SheetView sheet) { int r = sheet.Worksheet.ActiveRowIndex; int c = sheet.Worksheet.ActiveColumnIndex; if (r > 0) { int rStart = r - 1; System.ComponentModel.TypeConverter doubleConverter = System.ComponentModel.TypeDescriptor.GetConverter(typeof (double)); while (rStart > 0) { object val = sheet.Worksheet.Cells[rStart, c].Value; if (val is double || val is float || val is long || val is int || val is short || val is byte || (val != null && doubleConverter.CanConvertFrom(val.GetType()))) rStart--; } //Type numbers in a few cells in a column and type Alt + equal in the cell below them. //Hit enter to see the formula update. string formula = "SUM(" + sheet.Worksheet.Cells[rStart, c, r - 1, c].ToString() + ")"; sheet.Worksheet.Cells[r, c].Formula = formula; sheet.StartCellEditing(); } } |
VB.NET |
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Private Sub OnInsertSumFormula(sheet As GrapeCity.Windows.SpreadSheet.UI.SheetView) Dim r As Integer = sheet.Worksheet.ActiveRowIndex Dim c As Integer = sheet.Worksheet.ActiveColumnIndex If r > 0 Then Dim rStart As Integer = r - 1 Dim doubleConverter As System.ComponentModel.TypeConverter = System.ComponentModel.TypeDescriptor.GetConverter(GetType(Double)) While rStart > 0 Dim val As Object = sheet.Worksheet.Cells(rStart, c).Value If TypeOf val Is Double OrElse TypeOf val Is Single OrElse TypeOf val Is Long OrElse TypeOf val Is Integer OrElse TypeOf val Is Short OrElse TypeOf val Is Byte OrElse (val IsNot Nothing AndAlso doubleConverter.CanConvertFrom(val.[GetType]())) Then rStart -= 1 End If End While 'Type numbers in a few cells in a column and type Alt + equal in the cell below them. 'Hit enter to see the formula update. Dim formula As String = "SUM(" & sheet.Worksheet.Cells(rStart, c, r - 1, c).ToString() & ")" sheet.Worksheet.Cells(r, c).Formula = formula sheet.StartCellEditing() End If End Sub Private Sub Window_Loaded(sender As System.Object, e As System.Windows.RoutedEventArgs) Handles MyBase.Loaded Dim keyMap As Dictionary(Of GrapeCity.Windows.SpreadSheet.UI.KeyStroke, GrapeCity.Windows.SpreadSheet.UI.SpreadAction) = GcSpreadSheet1.View.KeyMap keyMap.Add(New GrapeCity.Windows.SpreadSheet.UI.KeyStroke(Key.OemPlus, ModifierKeys.Alt), New GrapeCity.Windows.SpreadSheet.UI.SpreadAction(AddressOf OnInsertSumFormula)) keyMap.Add(New GrapeCity.Windows.SpreadSheet.UI.KeyStroke(Key.B, ModifierKeys.Alt), New GrapeCity.Windows.SpreadSheet.UI.SpreadAction(AddressOf GrapeCity.Windows.SpreadSheet.UI.SpreadActions.NavigationLeft)) keyMap.Add(New GrapeCity.Windows.SpreadSheet.UI.KeyStroke(Key.A, ModifierKeys.Alt), New GrapeCity.Windows.SpreadSheet.UI.SpreadAction(AddressOf GrapeCity.Windows.SpreadSheet.UI.SpreadActions.Clear)) GcSpreadSheet1.Invalidate() End Sub |